H.R.4457 - Federal Government - To establish the Mississippi Delta National Heritage Area and the Mississippi Hills National Heritage Area, and for other purposes.

Mississippi Delta National Heritage Area Act of 2007 - Establishes the Mississippi Delta National Heritage Area. Designates the Mississippi Delta National Heritage Partnership as the coordinating entity for the Area. Requires the Partnership to develop and submit a management plan for the Area.

Mississippi Hills National Heritage Area Act of 2007 - Establishes the Mississippi Hills National Heritage Area. Designates the Mississippi Hills Heritage Area Alliance as the coordinating entity for the Area. Requires the Alliance to develop and submit a management plan for the Area.